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View Poll Results: Which is the best method for aeration?

Voters
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  • Long hang-time

    4 30.77%
  • Direct injection

    9 69.23%
Results 1 to 5 of 5

Thread: Best Method to Aerate

  1. Back To Top    #1

    Join Date
    Jan 2011
    Location
    Gulf Breeze, FL
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    24

    Best Method to Aerate

    I live near Pensacola, FL and our pool, with dark liner, stays too hot for me to enjoy. I decided to make an aerator that connects to the Polaris return and, depending on nighttime temp/humidity I can lower pool temp 3-6 DegF.

    Now, I am making the change to borates and the wife and I have running bet. Looking at the pictures, which method, direct injection or long hang-time, is better for raising PH?

    I use long hang-time for lowering the pool temp. When the water leaves the PVC pipe, the temperature lowers 3-4 by time the droplets return to the water. I would estimate the height of the arch to be about 8'.
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    BBB 26,700 Gal inground Vinyl lined pool with water. Pentair Intelliflo variable speed pump running at 1,500 rpm 24/7. Polaris 360 with booster pump. 200Lb sand filter. Some floating dinosaurs that my 8 Year Old threw in and Hair of the Dog. Taylor K-2006

  2. Back To Top    #2
    Mod Squad woodyp's Avatar
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    Apr 2010
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    8,995

    Re: Best Method to Aerate

    I'm a hang time guy myself. Looks prettier too!
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
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  3. Back To Top    #3
    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    37,879

    Re: Best Method to Aerate

    Lots of small bubbles are best for aeration. The lower photo should be more effective based on what I see in the photos, though either approach will work well.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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  4. Back To Top    #4

    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
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    12,082

    Re: Best Method to Aerate

    I vote for direct injection. You want to maximize the air-water interface and direct injection not only adds air bubbles to the water but it also churns the water making waves getting a large water surface area disrupted.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

  5. Back To Top    #5

    Join Date
    Jan 2011
    Location
    Gulf Breeze, FL
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    24

    Re: Best Method to Aerate

    I would like to share some observations . These are not scientific observations because I did not track all potential outside influence, i.e. day/night temp/humidity (we are in the Florida Panhandle and our day and night temperatures have been consistent). However, it was obvious to me as I was working to adjust TA/PH for adding borates.

    24 hours of Direct Injection provided a PH increase of .6 and temp decrease of 2DegF
    24 hours of Long Hang-time provided a PH increase of .2 and a temp decrease of 6DegF

    During full sun, with mask and snorkel, I played with the angle of attack from straight down (-90deg from horizontal) to nice arch (45deg from horizontal). Everywhere generated more/less bubbles but the interesting part was the amount of tiny “Micro Bubbles” (bubbles so small that they appear as a cloud or haze in the water). -45deg provided the most Micro Bubbles such that the cloud of bubbles would almost make it to the other side of an 18’ pool.

    The last observation struck me as a little odd and maybe it is just a matter of circumstance. Using my Taylor K-2006, I took PH & TA readings at 7am, 6pm, and at sundown. I did this everyday for 5 days. It appeared that 90% of the PH change occurred overnight. Yes, the aerator was running 24/7 for those 5 days.

    Actually, I was very surprised how fast I was able to lower my TA as I was expecting a much longer experience. I started the borate process July 6th and just finished today (still have to run for 48 hours).

    My 6 year old and I can tell the difference in the feel and I really noticed my hair was softer, not so dry, when I got out . I did not tell him that I changed the water and I tried to ask him ambiguous questions. The wife does not know yet and I do not plan to tell her, I want to see if she will realize the change.

    By the way, the wife won the bet .
    BBB 26,700 Gal inground Vinyl lined pool with water. Pentair Intelliflo variable speed pump running at 1,500 rpm 24/7. Polaris 360 with booster pump. 200Lb sand filter. Some floating dinosaurs that my 8 Year Old threw in and Hair of the Dog. Taylor K-2006

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